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19 Cards in this Set
- Front
- Back
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What are the three main parts of the ear?
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outer ear and middle ear and inner ear
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What are the two main parts of the outer ear?
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earflap and ear canal
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What bones move the vibrations from the outer ear to the inner ear?
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Hammer and anvil and stirrup
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What is the cochlea?
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The chamber that is in the shape of a spiral and is filled with fluid.
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How does sound travel?
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In waves
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Does sound travel faster through liquids or solids?
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Solids
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What happens when sound hits an object?
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It's reflected or absorbed.
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What is an echo?
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An echo is a sound that is reflected clearly enough to be heard again.
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What is sound?
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Vibrations that you can hear.
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What is vibration?
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A rapid back-and-forth movement.
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Name 4 ways you can cause an object to vibrate.
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Blowing, hitting, rubbing, plucking
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What are three different ways to describe sound?
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Pitch (high or low notes - like the piano), Volume, Quality (my voice is different than yours)
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What is one way we use sound?
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To communicate with each other
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What is the source of a sound?
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A vibrating object
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How can you make a sound louder?
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Use a stronger force (like hitting an object harder on a table)
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What is pitch
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How high or low a sound is (like on a piano)
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Materials that ___?_______ sound can be used to make a room quieter.
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absorb
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Lower pitched sounds vibrate _________?____ than higher pitched sounds?
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slower
(remember low/slow and high/fast) |
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As sound waves more farther away from their source, the sound becomes_________?_____?
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quieter
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